Recently fitted a new rear light cluster so I had to remove a few inner trims in the boot to gain access to the nuts etc and I noticed a small but noticeable amount of water right down in the corner below where the rear light is ( driver side)/ impossible to get to . I’m wondering how it has managed to get there as all the boot rubber seal is in place and looks good. I’m thinking if I can get access to underneath right in the corner I should drill a small hole for draining. Just wanted to know if anyone has had this problem? Just to be clear there is absolutely no water in the battery or roof pump area ( bone dry 
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